EP 0598508 A3 19950927 - METHOD AND APPARATUS FOR MULTI-TASKING INDEPENDENTLY EXECUTABLE PROGRAMS.
Title (en)
METHOD AND APPARATUS FOR MULTI-TASKING INDEPENDENTLY EXECUTABLE PROGRAMS.
Publication
Application
Priority
US 97852292 A 19921118
Abstract (en)
[origin: EP0598508A2] In an interactive network board, method and apparatus for multi-tasking independently executable programs, makes use of a ROM, disposed on the board, for storing (i) a monitor program, and (ii) first and second independently executable programs. The first and second programs each include a relinquish command. A processor is disposed on the board for downloading the monitor program and the first and second programs from the ROM to a RAM. The processor executes the first program in RAM until the first program relinquishes control. The monitor program then begins execution and stores in the RAM information which indicates the execution state of the first program. The second program then begins execution in RAM until the second program relinquishes control. The monitor program then recommences execution to store in the RAM information which indicates the execution state of the second program. Thereafter, the monitor program recommences execution of the first program, preferably from the point at which the first program relinquished control. <IMAGE>
IPC 1-7
IPC 8 full level
G06F 3/12 (2006.01); G06F 9/445 (2006.01); G06F 9/46 (2006.01); G06F 9/48 (2006.01); H04L 29/06 (2006.01)
CPC (source: EP US)
G06F 9/4843 (2013.01 - EP US); H04L 9/40 (2022.05 - EP US); H04L 2101/622 (2022.05 - EP)
Citation (search report)
- [Y] WO 9216895 A1 19921001 - ECHELON CORP [US]
- [A] WO 9015394 A1 19901213 - AISI RESEARCH CORP [CA], et al
- [A] US 5014221 A 19910507 - MOGUL JEFFREY C [US]
- [Y] H.M.DEITEL: "AN INTRODUCTION TO OPERATING SYSTEMS", 1983, ADDISON-WESLEY, READING, US
- [A] B.M.NEVILLE ET AL: "LOCAL OPERATING NETWORKS - AN EMERGING TECHNOLOGY", INTELLIGENT INSTRUMENTS AND COMPUTERS, vol. 9, no. 6, December 1991 (1991-12-01), US, pages 203 - 211, XP000472791
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0598508 A2 19940525; EP 0598508 A3 19950927; EP 0598508 B1 20030115; DE 69332635 D1 20030220; JP H06214810 A 19940805; US 5680645 A 19971021
DOCDB simple family (application)
EP 93308611 A 19931028; DE 69332635 T 19931028; JP 28644493 A 19931116; US 97852292 A 19921118